Automobile heater



1. B. FMNCVSC'O. AUTOMOBILEA HEATER.

APPLICATION FILED MAR110, |9210 4Patent-@f1 sept. 19, 1922;

Patented' Sept. 19, 192.2.

JOSEPH B. FRANCISCO, 0F COLMBUS, OHIO.

AUTOMOBILE HEATER.

Application led March 10, 1920. Serial No. 364,723.

useful Improvements in Automobile Heaters,

of which the following is a specifi-cation.

This invention relates to improvements in automobile heaters, and has for itsobject to provide simple, yet efficient means .capable of operating vin connection with the exhaust manifold of an internal combustion engine for the purpose of leading or introducing heat radiated from said manifold'into the interior of the vehicle body.

The invention consists essentially in the provision of a sheet meta-l tube wherein is provided a plurality of laterally disposed manifold receiving openings in which the branch conduits of the exhaust manifold are positioned, said tube being split longitudinally in order that the longitudinal edges thereof may be positioned in over- -lapped relation, and clamping means are,

associated with the tube so as to circumferentially contract the latter and to thereby effect a firm and positive securing of the tube in clamped relationship with the exhaust manifold, the construction being such as to permit this end to be accomplished with ease and facility.' A

Other objects will be in part obvious and in art pointed out hereinafter.

-he invention accordingly consists in the novel features of construction, .combinations of elements and arrangements of parts, hereinafter to be fully described and to have the scope thereof pointed out in the appended claim.

ln the accompanying drawings, forming a part of this specification, and in which similar characters of reference denote like and corresponding parts: y

Figure 1 is a side elevation disclosing the improved heater .comprising the present invention as applied to the exhaust manifold of an internal combustionv engine.

Figure 2 is a similar vie-w looking toward the inner face of the heater.

Figure 4is a detail longitudinal sectional view taken through the rearor discharge end of the heater.

Figure 5 is a detail transverse sectional view disclosing the fan draft adjusting mechanism, and,

Figure 6 is a rear elevation disclosing the discharge door of the heater.

In its preferred embodiment, the present invention consists of a vehicle heater 1 which is adapted to beemployed in conjunction with the exhaust manifold 2 of an internal combustion engine 3. Throughtlie provision of the heater 1, the radiated heat of the manifold 2 is confined and collected and delivered to the body of the vehicle with which the engine 3 is employed, for the purpose of heating the interior thereof. To accomplish this office, the heater consists of an elongated metal tube 4, which is: split longitudinally as is indicated by the numeral 5 whereby the tube may be rigidly fastened in connection with the manifold. As shown in Figure'2, the inner portion of the tube is formed wit-h suitable openings 6 which are arranged in such manner as to be capable of receiving the cylinder branches of the manifold 2 and these openings are of such proportion that the main body of the manifold will be concentrically located within the interior of the tube and substantially spaced from the inner walls of the latter, thus allowing for a circulation of air around the manifold and within the heater. The. front end of the'tube 4 is open and is so positioned as to lie immediately to the i'ear of the automobile radiator7. The position of this forward portion of the tube is of prime importance, inasmuch as it insures the delivery of fresh air only to the interior of the tube and precludes obnoxious, `motor odors `or gases. l

The rear end of the heater is provided with a removable section 8, the latter is of tubularform and is arranged to be longituthe tube 4 are provided with cooperating recesses 9 which are so disposed relatively that the downwardly bent end of the manifold 2 may project through such recesses and out of the heater. Manifestly, by the proforward end oi' the tube.

vision of the section 8 the heater is readily adapted to the structural formation ot the manifold 2 without permitting ot the undue escape of heated air trom the contines ot said heater. rlFhe rear end ot the section 8 may be terminated Within the cowl construction 10 of the vehicle with which the heater is employed. Thus, through the provlsion of the construction described, when the vehicle is in motion air vvill be forced through the tube l and brought into intimate contact with heat radiated from the manifold 2. This heated draft or air is then conducted rearwardly and discharged into the interior of the vehicle body. lt will be observed that the present invention does not let the exhaust gases ot the engine into the vehicle body and hence may be safely operated. lThe discharge end of the section 8 is provided with a transversely disposed guide plate 11 which is situated just Within the cowl construction 10 of the vehicle. This plate carries a sliding valve plate 12 by meanso'f which the extent of opening oli the discharge end of the heater may be manually regulated, the position ot the plate 1Q being ,such that its manipulation may be etlected in a convenient manner tromthe vehicle operatorie normal position.

:in essential feature ot the present invention resides in constructing the heater 1 so that the same may be quickly secured in operative relationship in connection vvith the manifold 2. This is mainly accomplished by splitting the tube longitudinallyl as at 5, and then providing the tube with a pluralitvv ol circumferential straps 13. rlhese straps are provided ivith spaced ears 1l through vvhich clamping bolts 15 are disposed to extend. nuts 16 being provided upon the threaded ends of said bolts a'nd adapted to be turned to contract the tube l circumferentially. Therefore, by tightening the nuts 16. it ivill be manifest that the longitudinal edges ot the tube l may be dravvn relatively so that said tube may be quickly and positively clamped in its applied and operative position, Without the necessitiv of removing engine parts to effect this object.

As shoivn in Figure 5. the forward end of the 'tube -l is provided with an elongated slot l? Whose etl'ective VWidth may be regulated by the provision ot a rotatable sleeve 18. the latter being carried shown. by the outer end ot said tube. This sleeve is provided with a slot 19 which is capable ot being brought into or out ot' registration ivith the slot 1T so that the extent otl opening olf the latter may be regulated. lli'hen the vehicle is movingv the sleeve 18 may be so rotated as to cover the slot 1T. thus permitting of an unhindered flow ot air into the '.lhere'tore. in the event that the vehicle is standing stillgand inaaeea the motor is in motion, the sleeve 18 may be rotated so that the slot 17 will be fully or partially uncovered. `When this is accomplished, the heater is susceptible to the draft influences created by the motor tan 20, which latter acts to provide an induced dra'tt through the heater and therefore serves to insure a delivery ot heated air into the body ot the vehicle even when the latter is stationary.

Preferably, the rear end ot the tube l is provided with a slot 21, which is capable ot being covered by means ot a sliding door 22. This construction is such that by opening the slot 21 through the medium ot the door 22, the heat contained Within the tube may be 'freely discharged from the heater and will not circulate rearwardly into the body ot the vehicle. The door Q2 is of considerable use when high temperatures are prevalent, inasmuch as it eliminates the nef cessity of removing the tube from its applied position upon an engine and in Winter said door enables the temperature ot the interior of the vehicle to be readily regulated.

From the foregoing description, taken in conjunction ivith the accompanying drawing, it will be apparent that the present invention provides a heater ot simple yet erlicient construction, and onel -fully capable ot carrying out its various ends. The construction ot the heater is such that the same may be readily and easily applied in a tired man ner to the manifold ot an internal combustion engine, and eliminates the necessity of removing engine partsv to eiiiect its application. rlhe band construction 13 in cornbination` ivith the longitudinal joint 5 provided in the heater enables the latter to be quickly and positively clamped around the manifold and effectively serves to prevent 'the heater from losing its applied position around the manifold and also eliminates undue escape oit the heated air passing through the tube, The various dampers associated ivith the heater are so construct-ed and positioned as to control the tlovv ot heat- Within the tube l in any desired manner and thus enables the heater to be comfortably adapted to the existing climatic conditions To hold the tube l in proper spaced relation with respect to the manifold resilient bands are provided, said bands bcing disposed transversely within the tube and have their ends tired thereto. as shovvn in Figure 5 oic the drawing. When the tube is contracted through the medium oi the straps 13. the bauds T23 "will yieldablv engage the manifold 2 and lirmly hold the tube in proper position thereon.

llfhat is claimed is:

n automobile heater comprising a tube adapted to encircle the exhaust manifold o1u an internal combustion engine, bowed resiliing the edges overlapped, and means for ent bands disposed transversely in the tube drawing said edges together whereby the and having their ends fixed to the tube, said bands yieldably engage the manifold to 10 bands being adapted to yieldably engage the hold the same in clamped-relation with said exhaust manifold, the ends of the tube being manifold. y

open to permit passage of air therethrough, In testimony whereof I aiiix my signature. said tube being split longitudinally and hav- JOSEPH B. FRANCISCO. 

